[derrickaw]

Fix: #40814

[derrickaw]

/gemini review

[github-actions]

📋 Review Summary

This PR fixes DeferredSeries.duplicated() by removing the invalid column subscripting on the DeferredSeries returned by DeferredDataFrame.duplicated(), and properly preserves the Series.name attribute across both DeferredSeries.duplicated() and DeferredSeries.drop_duplicates(). It also adds unit test coverage for named and unnamed Series and re-enables the Series.duplicated pandas doctest.

🔍 General Feedback

• The fix is clean, idiomatic, and accurately mirrors pandas behavior for Series.name preservation when delegating to DataFrame operations.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 79.91%. Comparing base (2213e54) to head (43d2ca8).
⚠️ Report is 42 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff             @@
##           master   #40846       +/-   ##
===========================================
+ Coverage        0   79.91%   +79.91%     
===========================================
  Files           0      493      +493     
  Lines           0    83485    +83485     
===========================================
+ Hits            0    66713    +66713     
- Misses          0    16772    +16772     

Flag	Coverage Δ
python	79.91% <100.00%> (?)

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[github-actions]

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R: @tvalentyn for label python.
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